<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<!--Vue挂载的容器-->
<div id="app"></div>
<!--引入Vue-->
<script src="../../JavaScript/vue.js"></script>
<script>
    <!--创建一个app实例-->
    const app = Vue.createApp({
        template: `<h2>hello Vue3</h2>`
    })
    // 调用app.mount挂载
    app.mount("#app")
</script>
</body>
</html>